Trolley collector head



Sept. 6, 1949 P. c. J. DELACHAUX TROLLEY COLLECTOR HEAD Filed Oct. 29,1945 Patented Sept. 6, 1949 TROLLEY COLLECTOR HEAD v Philippe CharlesJean Delachaux, Paris, France,

assignor to Acieries de Gennevilliers, Gennevilliers, Seine, FranceApplication October '29, 1945, Serial No. 625,362 l In France March 17,1944 Section 1, Public Law 690, August 8, 1946 Patent expires March17,1964

top end with ahead carrying a rubbing contactor intended to take currentfrom the overhead'electric wire for feeding a motor vehicle, suchcontactor being adapted to'rotate about three axes perpendicular to oneanother and its rotation about one of such axes having for result tomodify the inclination of its grooved walls and to bring the lattertowards the vertical position, and even beyond, for keeping them intouch with the wire and thus preventing the contactor from escaping thewire, that is to say for avoiding disengagements of the pole.

According to the present invention, a similar efiect of inclination ofthe contactor grooved walls is obtained with the aid of means that aresimpler in construction and different from a rotation about an axissubstantially parallel to the According to one feature of the presentinvention there is provided a grooved rubbing contactor mounted on thetop end of an axle which'is connected by an integral linking member withan inclined axle adapted to rotate in an appendage provided on the topend of the pole the axes of both axles meeting above the-level of thewire, so as to cause said contactor to keep in touch with the wire witha view to preventing disengagements of the pole.

' Accordingtoanother feature of the invention means have been providedsothat, when the pole is in its normal'working position, as on straightwire sections, theaxle carrying'the grooved rub bing contactor isvertical, while the linking member connecting said axle with theinclined loosely rotatable axle is horizontal, with a result that therubbing contactor constantly straddles the wire, thereby positivelyavoiding disengagements of the pole.

According to a further feature of the invention, the provision made forfree rotation in the pole appendage of the assembly comprising thegrooved rubbing contactor, its supporting vertical axle and thehorizontal linking member connecting this axle with the inclined axleloosely rotatable in the said appendage, acts to increase pressure ofthe contactor n the electric wire at the moment of lateral efforts ofthe pole, as on track curvatures, whereby pole disengagements arepositively avoided.

According to a still further feature of the invention, the assemblycomprising the grooved rubbing contactor, its supporting vertical axleand. the horizontal linking member connecting this axle with theinclined axle loosely rotatable in the said 2 Claims. (C1.;191,60)

appendage, acts to, decrease the-.coeflicient oi friction between theelectric wire and the grooved rubbing contactor sliding. thereon,thereby decreasing wear-and tear ofthe contactor. For this reason thepole head is particularly suitable for high speeds which at curvesproduce considerable centrifugal force. 1 4 Further features of theinventionswill be apparent from the following description with referenceto the accompanying drawing which shows, by way of example, anembodiment thereof, and.

in which; a

Fig. 1 is a diagrammatic elevational side view with part in sectionshowing the pole head in its operational position on,-a straightoverhead electric wire; I j

Fig. 2 is a diagrammatic rear end view showing the rotatable assembly ina position, as on a track curvature; in which the contactor carryingaxle forms an angle with the-pole,

Fig. 3 is a diagrammatic showing of various positions likely to beoccupied by the contactor carrying axle where the-inclined axle hasrotated through 180.

' The device comprises a rubbing contactor I provided with a groove 2the-bottom which contacts an electric wire 3; The contactor isswivelm'ounted, asin'known arrangements, so as to be able to oscillateina vertical plane passing through the wire 3; it mayalso pivot through360 in the horizontal plane passing through the wire3.

The grooved rubbing contactor l is supported by an axle 4 substantiallyvertical in the working position of the pole 'on' straight sections' ofthe electric wire 3. The axle 4 is connected, by means of asubstantially horizontal link member 5, with an inclined axle 6 whichserves as a support for the movable assembly l45 and is pivotallymounted on a substantially horizontal appendage 1 provided on the topend of the pole 8. The angle a formed between the linking member 5 andthe inclined axle 6 is superior to The axes of axle 4 and of axle 6converge at a point A above the level of wire 3.

When the movable assembly I4--5 is caused to pivot together with theaxle 6, it is visible in Fig. 2, wherein the angle of pivoting has, forthe sake of simplicity, been supposed to be of 90, and, consequently,both the link 5 and axle 4 are located in the plane thereof, that thelink 5 and the axle 4 perpendicular thereto, as well as the groovedrubbing contactor I, are all inclined accordingly. By comparing theposition of start (indicated by dotted lines, Fig. 2), from which thetogether with the link and axle 4, has had two" main sequels as follows:

On one hand, the axle 4 and hencethe dge -9-- 7 wire 3 efiects a kind ofoscillating motion in substantially horizontal planes passing throughthe wire 3 and perpendicular to the contactor vertical axis, that isto-sa-y of the kinderefierred to in the 5 above second-mentioned ease,resulting in reducing the coeflicient of friction, thereby reducing aswear and tear of the contactor I.

What I claim is: 1-.'-'-A-trel-ley pole head for taking current from ofgroove 2 have assumed an inclined -position' 10 the overheadelectric'wire to feed a motor vehicle such as to straddle the wire'alinigich arwayethat the passage of current therethrough is assured,since the very action of the eiiiort in thedirection comprisinginqcombination a pole, a grooved rubbingv'conta'ctor the groove of whichreceives the electric wire, an axle rotatably supporting of arrow ftends to bring the mies imesfie-mwer said =c6ntajctonatofie end andbeing substantially portion of the groove 2 of contactor I.

' g 'vertical for a straight part of the wire, a link in- On the otherhand, the grooveglacontacterdahae -tegralewith the opposite end of saidaxle disposed been raised, as is particularly visible byecmnparing wwsubstantia-lly horizontal for a straight part of the its positionindicated by full lines in Fig. 2, with wire, and an axle integral withthe other end of its position of start indicated therein by*dotted** fi-P X mounted in an inclined lines. Indeed, because' ef the inclination ofthe pos t i he top end oi the po he axes of both axl'e 6 (mg 'ea tnereis deseriben w theaxiel a frustum 'cone having semis axishe-axle- EShould the axlet revolvethrougti 1 80 it would assume its'highes'ttpcsition aadbenditioned by the said coneuamr intern-mediatepcsiticn'siprogressing from its loweimost' pdsitlor'i as ilius'trated bythe cone. In reality, it is clear that the ivire ii'emains in. astationary pcsitrem heme' it w-m be the pole that will: lower?that-pressure 0f the i grooved c'o'nt actor. f 1 onesthe wirfii wibhincrease whenever the centrifu'gal' effii'i ii wilt be exerted on thepole, thereby increasing the resistance to disengagementecrtltepoie 1 rc It is- -t'o be noted that'the ceiitrifugal efforts-of path representedby the circular arc describe'd by the contactor h ancl the centrimgalefforti of the pole: isssubstnmrially reducemim its repereussiori on"the ofsu ppbrbcffitliexiontacttirl'lt for thiseffort is to bedividalvby the timwrequired tc traveloversaidzcivmfiamarcr:22. i i: l 7

- Finally-:mturtiuierzaMntage 'of the'idevice'a'ccording.tctheinventioncobnsiistszmreduclng wear and tear of the groovedcontactor L. i.v

1 Itrisciniaetnkncwm thatiwhen avbody #acted 45 aides-intersectingabove-thecplanesof thezwiregtso as tmcause saidmontactor toconstantlyrstraddle the'electric-wire." v r i e 2\ A trolley polehead--for taking current=from the overhead electric-wirwto feedamotorvehicle comprisingin eombination a-pole,-;-aegroevedrub=bingecontactor the goove of which: receives the electric-wire anaxlersupportingesaid nontactor on onewend by a-swivelioint andebeing 5Z'bstanitia-l-ly vertical-rfor-astraiight partct the wireealink.

the poleareelaetiesiy abseebec cmwearer/Queerelinedapositionmtheteprid-ofithepolentheam or. both -axles-intersectingabove the=planeof the wire, as tc-causesaid centaeter-to constantlystraddletheelectric W318i" V PHILIPPE CHARLES JEAN DELACHAUXA Thefollowlng referencesare' ot"record in the file ofr tliis patent-:* I g IUNIIED upon bygravityanderestingvoma planenurface-is Number Name ""1Date intendedambezdisplaced thereon immrlesh'edzdi- :1722379 O1er" c Man-I0, 1-903 rectiomsnchedisplaeement isanmierdifli cifltito efi 1 928316fifiazinsfi; 1909' fectrin thezcaselofmlzre' bedymbeingiinitially im-1,225,926 Carmack "May 1'5, 1917 movable thanrrinwthecase of itsmovingin the di' 50 21,151,804 -=Schaake1 Ma'rflilSE' 1939 rectionperpendicmaretoatheainreiesaizhdirection; b I v for the coefficient offriction is smaller in the PATENTS SECOIldrlMCHtiODQdrCflSBJ: a.Numberw- Goun'try- :Y -Date (In the ideviceiaccmfding sfio'gzfrhemresentuinvention, therubbingzxcmtactorri whemslidingwn the

